Re: Cluster name in ps output

On 2014-05-05 09:52:33 -0400, Tom Lane wrote:
> Andres Freund <andres@2ndquadrant.com> writes:
> >>> Aren't you potentially dereferencing a NULL pointer here?
> 
> >> Hmm -- I thought the GUC machinery would make sure cluster_name either
> >> pointed to the default I provided, an empty string, or a string read from
> >> the configuration file.  Perhaps I need to go and read up on how GUCs work.
> 
> > That's true - but I am not sure you can guarantee it's only called after
> > the GUC machinery has started up.
> 
> The elog code MUST be able to work before GUC initialization is done.
> What do you think will happen if we fail to open postgresql.conf,
> for example?

But elog. shouldn't call init_ps_display(), right? Anyway, I am all for
initializing it sensibly, after all it was I that suggested doing so above...

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services